There is no doubt that Apple needs to diversify its processor supply chain, but Samsung and Intel are weak alternatives next to TSMC. Apple may try anyway.

Apple processors are made by TSMC, but that could change

Apple processors are made by TSMC, but that could change
Rumors have come and gone about Apple buying Intel for its US foundries, but something about that idea stuck. More recent rumors suggested Apple could start relying on Intel for Apple Silicon production as soon as 2027 or 2028.
According to a new report from Bloomberg, Apple has been considering Intel and Samsung to build “main device chips” for some time. While the recent chip and memory shortage has added some pressure, Apple had allegedly been making these considerations well before the current situation.